@misc{indiciae136385f05bf8,
  title = {The heart in scleroderma.},
  author = {M A Sackner and E R Heinz and A J Steinberg},
  year = {1966},
  doi = {10.1016/0002-9149(66)90246-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/5929661/},
  note = {Source identifier: 5929661}
}